Products
DDX21 antibody
- Product Name
- DDX21 antibody
- Catalogue No.
- FNab02299
- Size
- 100μg
- Form
- liquid
- Purification
- Immunogen affinity purified
- Purity
- ≥95% as determined by SDS-PAGE
- Clonality
- polyclonal
- Isotype
- IgG
- Storage
- PBS with 0.02% sodium azide and 50% glycerol pH 7.3, -20℃ for 12 months(Avoid repeated freeze / thaw cycles.)
Immunogen
- Immunogen
- DEAD(Asp-Glu-Ala-Asp) box polypeptide 21
- UniProt ID
- Q9NR30
- Observed MW
- 87 kDa
Application
- Tested Applications
- ELISA, WB, IHC, IF, IP
- Recommended dilution
- WB: 1:500-1:2000; IP: 1:200-1:1000; IHC: 1:20-1:200; IF: 1:20-1:200
Validated Images
HepG2 cells were subjected to SDS PAGE followed by western blot with FNab02299(DDX21 antibody) at dilution of 1:2000
IP Result of anti-DDX21 (IP:FNab02299, 4ug; Detection:FNab02299 1:1000) with COLO 320 cells lysate 2800ug.
Immunohistochemistry of paraffin-embedded human colon cancer using FNab02299(DDX21 antibody) at dilution of 1:100
- Background
- RNA helicase that acts as a sensor of the transcriptional status of both RNA polymerase(Pol) I and II: promotes ribosomal RNA(rRNA) processing and transcription from polymerase II(Pol II)(PubMed:25470060). Binds various RNAs, such as rRNAs, snoRNAs, 7SK and, at lower extent, mRNAs(PubMed:25470060). In the nucleolus, localizes to rDNA locus, where it directly binds rRNAs and snoRNAs, and promotes rRNA transcription, processing and modification. Required for rRNA 2'-O-methylation, possibly by promoting the recruitment of late-acting snoRNAs SNORD56 and SNORD58 with pre-ribosomal complexes(PubMed:25470060, PubMed:25477391). In the nucleoplasm, binds 7SK RNA and is recruited to the promoters of Pol II-transcribed genes: acts by facilitating the release of P-TEFb from inhibitory 7SK snRNP in a manner that is dependent on its helicase activity, thereby promoting transcription of its target genes(PubMed:25470060). Functions as cofactor for JUN-activated transcription: required for phosphorylation of JUN at 'Ser-77'(PubMed:11823437, PubMed:25260534). Can unwind double-stranded RNA(helicase) and can fold or introduce a secondary structure to a single-stranded RNA(foldase)(PubMed:9461305). Involved in rRNA processing(PubMed:14559904, PubMed:18180292).
